[INFO] fetching crate router-rs 0.2.1...
[INFO] checking router-rs-0.2.1 against beta for pr-78714
[INFO] extracting crate router-rs 0.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate router-rs 0.2.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate router-rs 0.2.1
[INFO] finished tweaking crates.io crate router-rs 0.2.1
[INFO] tweaked toml for crates.io crate router-rs 0.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 250ce42acd4f6f1b912a7a17075ac77c04a9392d8a6741c83d23d07bdbb05929
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "250ce42acd4f6f1b912a7a17075ac77c04a9392d8a6741c83d23d07bdbb05929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "250ce42acd4f6f1b912a7a17075ac77c04a9392d8a6741c83d23d07bdbb05929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "250ce42acd4f6f1b912a7a17075ac77c04a9392d8a6741c83d23d07bdbb05929", kill_on_drop: false }`
[INFO] [stdout] 250ce42acd4f6f1b912a7a17075ac77c04a9392d8a6741c83d23d07bdbb05929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0da119ad2cd7c681ca738f7a30edcf3023b5f8f7dc5bb7e25c8f914079f7ae1a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0da119ad2cd7c681ca738f7a30edcf3023b5f8f7dc5bb7e25c8f914079f7ae1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling html-validation v0.1.2
[INFO] [stderr]     Checking web-sys v0.3.45
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking virtual-node v0.2.7
[INFO] [stderr]    Compiling html-macro v0.1.9
[INFO] [stderr]    Compiling router-rs-macro v0.1.1
[INFO] [stderr]     Checking virtual-dom-rs v0.6.14
[INFO] [stderr]     Checking router-rs v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `virtual_dom_rs::VText`
[INFO] [stdout]  --> src/route.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use virtual_dom_rs::VText;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `virtual_dom_rs::VirtualNode`
[INFO] [stdout]  --> src/route.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use virtual_dom_rs::VirtualNode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/route.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub type ParseRouteParam = Box<Fn(&str, &str) -> Option<Box<dyn RouteParam>>>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, &str) -> Option<Box<dyn RouteParam>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `virtual_dom_rs::VText`
[INFO] [stdout]  --> src/route.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use virtual_dom_rs::VText;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/route.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub type ParseRouteParam = Box<Fn(&str, &str) -> Option<Box<dyn RouteParam>>>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, &str) -> Option<Box<dyn RouteParam>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]    --> src/route.rs:182:9
[INFO] [stdout]     |
[INFO] [stdout] 182 |     use std::cell::RefCell;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]    --> src/route.rs:183:9
[INFO] [stdout]     |
[INFO] [stdout] 183 |     use std::rc::Rc;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `router-rs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0da119ad2cd7c681ca738f7a30edcf3023b5f8f7dc5bb7e25c8f914079f7ae1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0da119ad2cd7c681ca738f7a30edcf3023b5f8f7dc5bb7e25c8f914079f7ae1a", kill_on_drop: false }`
[INFO] [stdout] 0da119ad2cd7c681ca738f7a30edcf3023b5f8f7dc5bb7e25c8f914079f7ae1a